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Finding the Fourth Proportional to 582,434.05, 804,006.99 and 391,558.16

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Solution

The fourth proportional to 582,434.05, 804,006.99 and 391,558.16 is: 540,516.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,434.05 : 804,006.99 = 391,558.16 : x
  2. Step 2: Convert to fraction form
    582,434.05/804,006.99 = 391,558.16/x
  3. Step 3: Cross multiply
    582,434.05x = 804,006.99 × 391,558.16
  4. Step 4: Simplify right side
    582,434.05x = 314,815,493,611.50
  5. Step 5: Solve for x
    x = 314,815,493,611.50/582,434.05
  6. Step 6: Final answer
    x = 540,516.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.